It depends on the species tree. Some species don't live too long, maybe 40 or 50 years for some palm trees, but some can live up to 5000 years, such as the Bristlecone Pine (Pinus longaeva).

Most tree species live on the order of one to a few hundred years, and so will easily outlive a person, and can also outlive some countries. For example, many of the giant redwoods on the central coast of California were alive when Christopher Columbus discovered the new world, and were alive when the founding fathers rebelled against England, and will still be around in another several hundred years.

Trees can live anywhere from less than 100 years up to more than a few thousand years. It all depends on what type of tree it is. In the United States, the tree with the longest lifespan is the bristle cone pine, which grows in the mountains of Nevada and southern California. A single tree can live up to 5,000 years!